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  1. Couchbase Server
  2. MB-51407

[BP of MB-51305 to 7.0.4] - XDCR cannot handle data larger than 20MB

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    Description

      Document value + system xattribute can add up to 21MB as documented here: https://docs.couchbase.com/server/current/learn/data/data.html#size-limits

      XDCR and gomemcached has a limit of 20 MB. Errors are reported when a mutation exceeds 20 MB is replicated:

       

      2022-03-03T18:15:05.734-08:00 [ERROR] Error in receive 21021696 is too big (max 20971520) 
      		 
      2022-03-03T18:15:05.737-08:00 ERRO GOXDCR.GenericSupervisor: PipelineSupervisor_9a252d3d993cad71edc125d5c974b410/B1/B2 Received error report : DCP upr feed has been closed.
      		 
      2022-03-03T18:15:05.737-08:00 ERRO GOXDCR.DcpNozzle: dcp_9a252d3d993cad71edc125d5c974b410/B1/B2_127.0.0.1:12000_0 Raise error condition DCP upr feed has been closed.

       

      and DCP goes in a loop trying to reconnect and hitting the error.

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          is a backport of

          Bug - A problem which impairs or prevents the functions of the product. MB-51305 XDCR cannot handle data larger than 20MB

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          For Gerrit Dashboard: MB-51407
          # Subject Branch Project Status CR V
          172220,1 MB-51407 Increase MaxBodyLen to 21 * 1024 * 1024 to support system extended attribute. cheshire-cat gomemcached Status: MERGED +2 +1

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              pavithra.mahamani Pavithra Mahamani (Inactive)
              lilei.chen Lilei Chen (Inactive)
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